846140031 has 48 divisors (see below), whose sum is σ = 1473189120. Its totient is φ = 461640960.

The previous prime is 846140027. The next prime is 846140041. The reversal of 846140031 is 130041648.

It is not a de Polignac number, because 846140031 - 2² = 846140027 is a prime.

It is a super-2 number, since 2×846140031² = 1431905904121361922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 846139977 and 846140004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846140011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27780 + ... + 49638.

It is an arithmetic number, because the mean of its divisors is an integer number (30691440).

Almost surely, 2^846140031 is an apocalyptic number.

846140031 is a deficient number, since it is larger than the sum of its proper divisors (627049089).

846140031 is a wasteful number, since it uses less digits than its factorization.

846140031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21916 (or 21913 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 846140031 is about 29088.4862273718. The cubic root of 846140031 is about 945.8321686303.

Adding to 846140031 its reverse (130041648), we get a palindrome (976181679).

The spelling of 846140031 in words is "eight hundred forty-six million, one hundred forty thousand, thirty-one".